(ă-pārz′)
[Pronunciation]
[Eugene Apert, Fr. pediatrician, 1868–1940]
A congenital condition marked by premature closure of the sutures of the skull causing malformations of the head.
Other manifestations include webbed fingers and toes, cleft palate or uvula, prognathic mandible, and maxillary hypoplasia, resulting in extreme malocclusion.